A:

Apparent vein structures in the exterior of the tree... different from modern tree (apparently)

A observation:

In regard modern trees normally have their veins though out the tree..
(well the heart wood is commonly solid; after all we have been using heart wood to carve for this property for thousands of years.)

A : Observation 2

A : Observation 3

Tree's of the rain forest are observed to have varieties that have Exterior root and stem flanges that may be related..

So bearing in mind the possibly hot nature of the climate in the period we may observe the difference in temperature between time periods may have favoured the rain forest necessity to lose, gain and control heat.

B2 : Observation

Observation of the similarities such as panther fur patterning .. could tweak interests ..

(However observing genetic transferral or sourcing in historic data would be difficult without DNA or RNA or other clear data, Or observable life..
So Finding some may observably be of interest & evidentially has in the past.)